16 citations · 39 across the 8 of their papers we have counts for
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A Three-Fluid Model of Dissipation at Surfaces in Superconducting Radiofrequency Cavities
Matthias Liepe Michelle M. Kelley, Sean Deyo, Nathan Sitaraman +4
Experiments on superconducting cavities have found that under large RF fields the quality factor can improve with increasing field amplitude, a so-called ``anti-Q slope.'' We numer…
Microscopic Investigation of rf Vortex Nucleation in Nb3Sn Films Using a Near-Field Magnetic Microwave Microscope
Chung-Yang Wang, Zeming Sun, Thomas Oseroff +2
We use a near-field magnetic microwave microscope to investigate and compare rf vortex nucleation in two superconducting radio-frequency (SRF)-quality Nb3Sn films fabricated by dif…
Measurements of the amplitude-dependent microwave surface resistance of an Au/Nb bilayer
Thomas Oseroff, Zeming Sun, Matthias Liepe
Surface properties are critical to the capabilities of superconducting microwave devices. The native oxide of niobium-based devices is thought to consist of a thin normal conductin…
Theory of Nb-Zr Alloy Superconductivity and First Experimental Demonstration for Superconducting Radio-Frequency Cavity Applications
Nathan S. Sitaraman, Zeming Sun, Ben Francis +8
Niobium-zirconium (Nb-Zr) alloy is an old superconductor that is a promising new candidate for superconducting radio-frequency (SRF) cavity applications. Using density-functional a…
Dissipation by surface states in superconducting RF cavities
Sean Deyo, Michelle Kelley, Nathan Sitaraman +5
Recent experiments on superconducting cavities have found that under large radio-frequency (RF) electromagnetic fields the quality factor can improve with increasing field amplitud…